We came up with an answer to that question years ago and we named our school RightLane Prep Academy.  It's been my intent to make t-shirts with our school logo on them for the kids to wear when we go on field trips...etc.  As I was in the process of uploading the logos I created several years ago, the thought occurred to me that other homeschoolers might like one so I decided to make them public.  I've kept the colors very neutral for now but plan to have some in the future that are a bit more colorful.  I've never purchased anything from this company before so I don't know how good they are.  At the very least, maybe this will give you some ideas for your own school logos.